Do you need support for Assetto Corsa Competizione? Please use the proper forum below and ALWAYS zip and attach the WHOLE "Logs" folder in your c:\users\*youruser*\AppData\Local\AC2\Saved.
The "AppData" folder is hidden by default, check "Hidden items" in your Windows view properties. If you report a crash, ALWAYS zip and attach the WHOLE "Crashes" folder in the same directory.

ACC Blog MoTeC telemetry and dedicated ACC workspace

SUSPENSION TRAVEL WORKSHEETView attachment 126257
The suspension travel worksheet has a speed chanel on top so that you can check where you are in the circuit, and the suspension travel graph on the bottom. Generally those graphs produce a lot of noise as you can imagine, depending on the bumpiness of the circuit. It can be a good indicator of how much the suspension compressed from downforce, how much it raises during pitch movements which are important for aerodynamic stability and can also be used to check if a specific driver input, oversteery behaviour or other similar critical condition is caused by a bump on the road, a kerb or other surface feature that upsets the suspension and might ask for different damper settings.

TRACK REPORT WORKSHEETView attachment 126258
This worksheet draws a map of the circuit. You will need at least one good and valid lap so that the software can draw the map. If the circuit is not created, try going to the menu “Tools->Track Editor”. A new window will open. Click at the bottom left button “Generate Track…” and the track map will be generated. If this doesn’t happen, then the laps exported are neither not valid or not complete. Retry with a better series of valid laps export.
The map will also have different colours depending on the gear, but you can also change that to have colours represent speed or brake application and so on. Most importantly you can have multiple laps compared by selecting them from the Data left vertical panel and they will create concentric maps for each lap, giving you a very good insight of what is different for each lap.

CHANNEL REPORT WORKSHEETView attachment 126259
The channel report worksheet might look intimidating at first, but is very helpful once you realise what you’re looking at.
On the top part, every single turn of the circuit gets analysed and data are displayed for speed, lateral g and steerangle at the Apex of each turn. At the left part you can see those data as numerical values with highlighted the higher and lower values. On the right side the same data are drawn as histograms.
On the bottom part, the same analysis takes place for the straights.
By selecting more laps you can compare the values and this can give you a very good indication of the performances depending on the different conditions of each lap. It can be different setups, or different driving styles.

SECTION TIMES WORKSHEETView attachment 126260
In this final worksheet you can get an analysis of all your laptimes and for sectors and even every single straight and turn of each of your laps and get specific reports for them, as well as hypothetical optimum laptimes if all the sectors are ideal. The Rolling Minimum column doesn’t just take the best sectors and adds them to find the ideal laptime, but evaluates and tries to understand how each sector influences the next one, so that your ideal laptime is a probable and possible one, instead of a simple math add of best sectors. This screen can really help you find out your ultimate pace, measure your consistency and understand if a different setup or driving style can improve a specific track sector.

TO BE CONTINUED…

Providing telemetry data and even a detailed and specific workspace so that you can read and compare that data, is one thing. Be able to understand, find patterns, analyse in a correct way and improve your laptimes, your car performance and your driving, is a whole different story. Keep following us as we will provide you more tutorials, examples, walkthroughs and workshops in the near future, to help you improve your driving and your Assetto Corsa Competizione experience!

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I would like to start of saying this is pretty cool I just discovered it with release 6 to be honest. In sims being fast and consistent with limited tuning knowledge has go me far but there is a lot of things I would love to do (time from telemetry is apparently one I’m jumping into) and a lot of things to get even faster. So lastnight I got this up and running and did a few laps just to have something to look at.

Is it the case that not ALL data is present in ACC (not to mention other racing games). It looks like it was missing some key things after my laps, maybe it’s because this is an early release game too? Or new to the software I just don’t know how to get it to show up. I get that this is a great tool for engineers and probably takes some college etc. I have no fear I will be able to fully understand everything if I put my mind to it. I already know how to break down things I’m looking at and if it’s what I was trying to do in a given corner (break pressure and throat pressure for example, and comparing them to each other).

What I know nothing has about nor can I find is for example long and lat G forces. There just isn’t data. And my steering input or the over steering “graph” is that the right word.

Lastly is there a great place to learn HOW to use this info and translate it over to tuning? Ideally for ACC, I get it’s early and I had been finding iracing things so far, some AC as well. My tuning now consists of ‘if than’ charts I have found and other charts that tell me where to look at what place in the turns I’m at or where grip is effected if I adjust said thing.

Of example the lambo has this nasty habit of on a high speed turn during turning with any lift off the end washes out. Like on zolder turn 4 I believe it is. I have to fight the car just to not die. It’s a break then ,lift of turn, situation during a higher speed.

Not in front of my PC at the moment, but just a couple of quick suggestions in case they help:

After you set your number of laps in Electronics and leave the Setup menus, go back to your current setup menu and make sure that the lap selection stuck.

If you're not already doing so, save your setup with the desired laps so that at the beginning of each race session, you can load it up.

To clarify what @CoproManiac said, you need to quit each race session back to the game menu (don't just quit ACC from the race session) for the telemetry file to save.

You installed the Pro version of the MoTec application right?

If nothing is working, you can always try uninstalling and reinstalling the MoTec app if you haven't already.

Good luck! Sorry I can't help more at the moment.
Chris

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Hello
Sadly I tried everything. Unistalling MoTeC, installing it again (the version mentioned in an earlier post), copying the Worksheets, the save setups show the laps set to send to telemetry, so they stuck, save setups at the beginning of each race session, quit each race session back to the main menu, and no telemetry files are saved anywhere (even look for them in every single folder that has MOTEC as a name.
Any other ideas?

Hello All, First of all, thank you for ACC, I love it, with all its temporary drawbacks.
I've read a post where a fellow driver couldn't find the files that in theory, and the rest of you show proof, ACC should generate for MoTeC. In my case it is the same.
I followed the instructions, I have the lastest MoTeC software, the Assetto Corsa Competicione/MoTeC folder, the MoTeC /i2 folder, copied the Workspace folder in MoTeC/i2/Workspaces, which shows me the Workspaces created by Ari, set 9 laps to generate on Electronics, run several stints with different cars in different circuits, 90% valid laps, but The MoTeC folder under Assetto Corsa Competicione folders is completely empty bar the Workspaces folder, so I cannot copy any files nor open them in MoTeC.
Anyone can help me on this?

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Did you install the acc workspace first then run the MO TeC i2 program FIRST before running ACC you need to do this as step 1
Then run acc go to a track set the laps to be recorded.
Run full Valid Laps then exit to the main menu, Then go into the documents/ACC/Mo TeC theay should be in there 1 x Log File and 1 x Log file Extension Data
If you did not run Mo TeC first then un install it run acc check the setup screen to make sure the option to set the laps to be recorded is not showing.
then go back to step 1

It would be really nice if the telemetry data output logic could be further refined from where it is today.

Current behavior:
- telemetry data is ONLY written after you exit an active session completely (so no quick telemetry analysis possible when you are on a online server without risking not being able to get back onto the server)
- telemetry data is always written in one complete data string (no separation of different sessions, not even incomplete laps, so Motec i2 has also difficulties to auto select fastest complete lap times)
- data tags are incomplete (i.e. but not limited to: driver name, session type, tire type, etc…)

I am really looking forward to further updates to the Motec telemetry support and am REALLY HAPPY that we have now an official support of Motec telemetry in a proper serious racing sim (it took a couple of years after GTR2 was the last sim that officially did).

Hello ,
How you guys keep track of setup changes with different logged data files?
I know there is Setup Sheet option in Motec, But you have to put values manually.
Is there any way ACC can fill in setup values automatically with each logged data files?
So when i am browsing through many data files i can see what setup i had in that particular session

Hello ,
How you guys keep track of setup changes with different logged data files?
I know there is Setup Sheet option in Motec, But you have to put values manually.
Is there any way ACC can fill in setup values automatically with each logged data files?
So when i am browsing through many data files i can see what setup i had in that particular session

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Currently (and in earlier racing sims such as AC) you can simply take care of this issue with a thorough workflow:

1) test session in ACC to build a basic setup by experience and feel
2) save this setup with the achieved lap time and timestamp within session
3) leave the session and analyze telemetry data in motel i2 pro

With your lap time and time stamp you can later easily link a given setup from within ACC to a telemetry file after the fact.

[It would be really nice if Aris and friends could have a little peak in how the ACTI plugin for Assetto Corsa handles telemetry data write and how it properly tags and splices telemetry files with complete session data which would make work with telemetry files MUCH easier and archival more coherent]

By comparison a workflow I use for Assetto Corsa:

1) start ACTI plugin
2) enter a session in Assetto Corsa and commence building a basic setup from experience and feel
3) leave the track and enter the pit (still staying in live session - no need to terminate the live session for the ACTI plugin to properly splice and write telemetry data)
4) save basic setup with achieved fastest lap time (no need for time stamp as this can easily be retrieved by managing setup files through Content Manager or through Windows File Explorer)
5) ALT+TAB to Motec i2 Pro software and load + analyze telemetry data from current session
6) WHILE analyzing telemetry data in Motec i2 Pro ALT+TAB back and fore to pit in AC live session and make setup changes
7) save newly changed setup (I simply use the original setup name the new setup is derived from and add a "x" after the name)
8) test the new setup on the track and hopefully achieve a faster lap time
9) re-save the setup with it's new faster lap time in the name (this way my fastest setups are always displayed on top in the setup selection screen)
10) rinse and repeat setup + telemetry cycle

Additionally I occasionally also cross reference aero telemetry data through the AiM telemetry software.
The trick here is to RENAME the AiM telemetry file upon data ingestion to the EXACT name of the last Motec telemetry file from the actual session I load aero data from.
This way I can easily archive and cross reference both aero telemetry data with AiM Race Studio, telemetry data through Motec i2 Pro AND my setup file archive through Content Manager, have them all match properly and can precisely analyze events and circumstances across software solutions (even including replay file data) if the need arises.

For precisely setting up certain cars (such as LMP1 or modern F1 cars with extensive aero and complex suspension systems) this is the only way to do it properly.

I truly hope that telemetry data support will be expanded and further refined in ACC as time moves on. This stuff is actually what I enjoy most about sim racing (engineering).

I think the biggest thing with the data is we should be able to access is from the garage setup menu so it can be checked on the fly lap by lap.
Set up the car do some laps come in check the data make some changes go out and repeat the process.

Just as a random thought to immensely improve usability of the current telemetry data implementation:

@Aristotelis would it be possible to implement a console command that can be used IN SESSION to invoke telemetry data write to disk i.e. "/SAVETEL"?
Perhaps even a manual start of data logging could be implemented this way with "/STARTTEL" and even perhaps this could eliminate the current 30 lap limitation of data logging no matter what value is selected in SETUP/ELECTRONICS?

This would be a very useful temporary solution until the telemetry data splice and write to disk is more matured towards full release.

I've not read all the comments and replies but will leaderboard entries have downloadable MoTeC files? THAT would be something to make the game stand out if we could select any of the leaderboard entries and download their telemetry to try and match them.

The thing is, unless something is seriously wrong i.e. the damper is significantly worn or failed, then knowing the shape of the damper curve doesn't actually help that much as its largely set in stone apart from a few 'clicks' on the adjusters here and there. In sim-racing this isn't a problem as we're lucky enough to have a bottomless bank account meaning we can throw replacement parts at a car all day, night and day again!

We can pretty safely assume that the dampers that are running on the cars in-game are accurate in terms of damping rates and knee locations that have been specced, and importantly homologated, by the real teams and manufacturers. So we don't really need to know the details of the curve as they cant be significantly changed in the real world either. Like the real teams and race engineers, we just have to make do with what the manufacturer has given us.

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curves are not homologated in GT3, well at least the homologation documents I have on hand there isn't one in em (and we'd be screaming the oem to take it off if they were there tbh)

Knowing the shape of the curve helps a TON in setup development because you save a crapload of time when you know your curves. For those that can simulate a shaker rig that is esp important because it basically lets you pre-determine which range of adjustments are no-go before the car even hits the track.

Hello ,
How you guys keep track of setup changes with different logged data files?
I know there is Setup Sheet option in Motec, But you have to put values manually.
Is there any way ACC can fill in setup values automatically with each logged data files?
So when i am browsing through many data files i can see what setup i had in that particular session

Click to expand...

The setup sheet in motec is powerful as hell once you know how to reference it. Some (myself included) consider its usage a pre-requisite in real life analysis.

Currently (and in earlier racing sims such as AC) you can simply take care of this issue with a thorough workflow:

1) test session in ACC to build a basic setup by experience and feel
2) save this setup with the achieved lap time and timestamp within session
3) leave the session and analyze telemetry data in motel i2 pro

With your lap time and time stamp you can later easily link a given setup from within ACC to a telemetry file after the fact.

[It would be really nice if Aris and friends could have a little peak in how the ACTI plugin for Assetto Corsa handles telemetry data write and how it properly tags and splices telemetry files with complete session data which would make work with telemetry files MUCH easier and archival more coherent]

By comparison a workflow I use for Assetto Corsa:

1) start ACTI plugin
2) enter a session in Assetto Corsa and commence building a basic setup from experience and feel
3) leave the track and enter the pit (still staying in live session - no need to terminate the live session for the ACTI plugin to properly splice and write telemetry data)
4) save basic setup with achieved fastest lap time (no need for time stamp as this can easily be retrieved by managing setup files through Content Manager or through Windows File Explorer)
5) ALT+TAB to Motec i2 Pro software and load + analyze telemetry data from current session
6) WHILE analyzing telemetry data in Motec i2 Pro ALT+TAB back and fore to pit in AC live session and make setup changes
7) save newly changed setup (I simply use the original setup name the new setup is derived from and add a "x" after the name)
8) test the new setup on the track and hopefully achieve a faster lap time
9) re-save the setup with it's new faster lap time in the name (this way my fastest setups are always displayed on top in the setup selection screen)
10) rinse and repeat setup + telemetry cycle

Additionally I occasionally also cross reference aero telemetry data through the AiM telemetry software.
The trick here is to RENAME the AiM telemetry file upon data ingestion to the EXACT name of the last Motec telemetry file from the actual session I load aero data from.
This way I can easily archive and cross reference both aero telemetry data with AiM Race Studio, telemetry data through Motec i2 Pro AND my setup file archive through Content Manager, have them all match properly and can precisely analyze events and circumstances across software solutions (even including replay file data) if the need arises.

For precisely setting up certain cars (such as LMP1 or modern F1 cars with extensive aero and complex suspension systems) this is the only way to do it properly.

I truly hope that telemetry data support will be expanded and further refined in ACC as time moves on. This stuff is actually what I enjoy most about sim racing (engineering).

Click to expand...

here's the workaround for those who have a laptop:
use the laptop for your analysis, use the desktop as your driving rig. Share the telem folder on network, this way once you "pit", you can look at the data. Saves even alt-tabbing.

this is a GT3 sim, and i hate to break some of the bubbles on here, teams running GT3 cars with pitot and floor pressure sensors for aero studies is in the minute minority.

Is all the data really only recorded at 20hz?
Speaking with real life pro race-drivers and from my own experience, this is really rough to work with, and can be misleading. Especially when looking towards suspension and dampers.
Any plans to make this adjustable / up the data-rate? To maybe the same as what the physics run at?